if statements

Raindrops
Raindrops in PowerShell 
function Raindrops() {
    [CmdletBinding()]
    Param(
        [int]$Number
    )
    $sounds = ""
    if ($Number % 3 -eq 0) {$sounds += "Pling"}
    if ($Number % 5 -eq 0) {$sounds += "Plang"}
    if ($Number % 7 -eq 0) {$sounds += "Plong"}
    $sounds.Length -eq 0 ? "$Number" : $sounds
}

A very standard approach to solve the exercise. Using if statements to test divisibility of the input vs 3, 5 and 7. If the test turn out to be true, then the result got concatenated with the designated string.

if ($Number % 3 -eq 0) {$sounds += "Pling"}
if ($Number % 5 -eq 0) {$sounds += "Plang"}
if ($Number % 7 -eq 0) {$sounds += "Plong"}

If none of the tests triggered to be true, then the result string stay empty. The final ternary operation test if the result string to be empty, if so it would return the original input number as a string.

$sounds.Length -eq 0 ? "$Number" : $sounds

If statement.

6th Nov 2024 · Found it useful?

Other Approaches to Raindrops in PowerShell

Other ways our community solved this exercise
$sounds = switch (0) {
        ($number % 3) {"Pling"}
        ($number % 5) {"Plang"}
        ($number % 7) {"Plong"}
        Default {$number}
    }
-join $sounds
switch statement

Utilizing switch statement. 

$table = [ordered]@{3 = "Pling"; 5 = "Plang"; 7 = "Plong"}
$sounds = foreach ($key in $table.Keys) {
    if ($Number % $key -eq 0) {
        $table.$key
    }
}
$sounds.Count -eq 0 ? "$Number" : -join $sounds
ordered hashtable

Utilizing ordered hastable and foreach loop.